Indoor gas insulated switchgear

Abstract

The application relates to the field of electrical equipment technology, in particular to an indoor gas insulated cabinet which comprises a cabinet body and a heat dissipation device, the heat dissipation device comprises a water storage tank and a power assembly, the water storage tank is connected to the outer wall of the cabinet body, the power assembly comprises a one-way valve one, a one-way valve two, a thermal expansion and contraction plate and a circulating pipe, a power cavity is arranged in the cabinet body, the thermal expansion and contraction plate is connected to the inner wall of the power cavity, a water inlet flow channel is arranged in the inner wall of the power cavity, the one-way valve one is connected to the inner wall of the water inlet flow channel, a cooling flow channel is arranged in the inner wall of the power cavity, the one-way valve two is connected to the inner wall of the cooling flow channel, and the circulating pipe is connected to the outer wall of the cabinet body. In the application, the one-way valve one, the one-way valve two, the thermal expansion and contraction plate and the circulating pipe are arranged, so that the heat energy generated during the operation of the electrical device can be stably transferred to the inner wall of the cabinet body, the cooling of the electrical device is realized, the electrical device is not prone to damage caused by long-time operation in a high-temperature state, and the service life of the indoor gas insulated cabinet is prolonged.

Description

Technical Field

[0001] The present application relates to the field of electrical equipment technology, and in particular to an indoor gas-insulated cabinet. Background Art

[0002] Indoor gas-insulated cabinet, also known as gas-insulated switchgear, is a switchgear that uses gases such as sulfur hexafluoride or nitrogen as insulating medium.

[0003] During operation, electrical components in indoor gas-insulated cabinets generate heat, which accumulates in the inner cavity of the cabinet, causing the electrical components to operate at high temperatures for a long time and be damaged, thereby shortening the service life of the cabinet. Summary of the Invention

[0004] In order to improve the problem of heat energy accumulation in the inner cavity of an indoor gas-insulated cabinet, the present application provides an indoor gas-insulated cabinet.

[0005] This application provides an indoor gas-insulated cabinet, which adopts the following technical solution:

[0006] A gas-insulated indoor cabinet comprises a cabinet body and a heat dissipation device, wherein the heat dissipation device comprises a water storage tank and a power assembly, the water storage tank is connected to the outer wall of the cabinet body, the power assembly comprises a first one-way valve, a second one-way valve, a thermal expansion and contraction plate and a circulation pipe, a power cavity for water storage is provided in the cabinet body, the thermal expansion and contraction plate is connected to the inner wall of the power cavity, the thermal expansion and contraction plate is close to the electrical components in the cabinet body, a water inlet channel is provided on the inner wall of the power cavity, the water inlet channel connects the inner cavity of the water storage tank and the power cavity, the first one-way valve is connected to the inner wall of the water inlet channel, the first one-way valve allows water in the water storage tank to enter the power cavity through the water inlet channel, a cooling channel is provided on the inner wall of the power cavity, the second one-way valve is connected to the inner wall of the cooling channel, the second one-way valve allows water in the power cavity to enter the cooling channel, the circulation pipe is connected to the outer wall of the cabinet body, one end of the circulation pipe is connected to the cooling channel, and the other end of the circulation pipe faces the opening of the water storage tank.

[0007] By adopting the above technical solution, water is stored in the inner cavity of the water tank and the power cavity, and the thermal expansion and contraction plate is close to the electrical components in the cabinet. When the electrical components in the cabinet generate heat energy during operation, the electrical components transfer the heat energy to the inner wall of the cabinet. After the cabinet is heated up, the heat energy is transferred to the thermal expansion and contraction plate, thereby realizing the transfer of heat energy to the electrical components. At the same time, the thermal expansion and contraction plate heats up and expands, and the thermal expansion and contraction plate squeezes the water in the power cavity into the cooling channel through the one-way valve 2. The water in the cooling channel transfers heat to the inner wall of the cooling channel, thereby realizing the cooling of the inner wall of the cooling channel, so that the cabinet is not easily kept in a high temperature state for a long time, and ensures that the heat energy generated by the operation of the electrical components can be stably transferred to the cabinet. The inner wall of the circulation pipe is cooled, thereby realizing cooling of the electrical components, making it less likely for the electrical components to be damaged by operating at high temperature for a long time, thereby extending the service life of the indoor gas-insulated cabinet; at the same time, one end of the circulation pipe is connected to the cooling channel, and the other end of the circulation pipe is directed to the opening of the water storage tank. The water in the cooling channel flows back to the water storage tank through the circulation pipe, realizing the recycling of water resources and reducing the waste of water resources, thereby embodying the concept of energy saving; at the same time, when the thermal expansion and contraction plate cools down and contracts, the pressure in the power cavity is reduced, and the water in the water storage tank of the one-way valve enters the power cavity through the water inlet channel, realizing the automatic replenishment of water resources in the power cavity, thereby improving the convenience of using the indoor gas-insulated cabinet.

[0008] Optionally, the heat dissipation device also includes a cooling fan and a power impeller. The cooling fan is rotatably connected to the inner wall of the cabinet. The end of the cooling fan rotating shaft passes through the inner wall of the cabinet and is located in the cooling channel. The power impeller is coaxially connected to the cooling fan rotating shaft. The inner wall of the cooling channel is provided with a rotating cavity for the power impeller to rotate. The water in the cooling channel can impact the power impeller blades and drive the power impeller to rotate.

[0009] By adopting the above technical solution, when the water in the power cavity enters the cooling channel through the one-way valve 2, the water flowing in the cooling channel impacts the power impeller blades, driving the power impeller to rotate around its own axis. The power impeller is coaxially connected to the rotating shaft of the cooling fan, driving the cooling fan to rotate on the inner wall of the cabinet, driving the gas in the cabinet to impact the electrical components, and the gas and the electrical components exchange heat, thereby achieving cooling of the electrical components and further improving the heat dissipation efficiency of the indoor gas-insulated cabinet.

[0010] Optionally, the heat dissipation device also includes a guide plate, which is rotatably connected to the inner wall of the cabinet, the rotation axis of the guide plate and the rotation axis of the cooling fan are perpendicular to each other, the surface of the guide plate faces the air outlet end of the cooling fan, and the surface of the guide plate can guide the gas to impact the electrical devices in the cabinet.

[0011] By adopting the above technical solution, the guide plate rotates on the inner wall of the cabinet, driving the gas flow in the cabinet, so that the gas is in full contact with the electrical components in the cabinet, and the electrical components and the gas exchange heat, further improving the heat dissipation efficiency of the electrical components in the cabinet; at the same time, the guide plate surface faces the air outlet end of the cooling fan. When the cooling fan rotates to drive the gas in the cabinet to flow, the gas impacts the guide plate surface and flows along the guide plate surface toward the electrical components. The electrical components in the cabinet are in full contact with the gas, so that the electrical components in the cabinet are not easily heated during operation, thereby ensuring the stability of the operation of the indoor gas-insulated cabinet.

[0012] Optionally, the heat dissipation device also includes a transmission assembly, which includes a cam, a transmission rod, a power rod and an elastic member. The cam is connected to the rotating shaft of the cooling fan, and the inner wall of the cabinet is provided with a sliding groove for the transmission rod to slide. One end of the transmission rod is in sliding contact with the cam wheel surface, and the other end of the transmission rod faces the rotating shaft of the guide plate. The end of the power rod is connected to the rotating shaft of the guide plate, one end of the elastic member in the elastic direction is connected to the guide plate surface, and the other end of the elastic member in the elastic direction is connected to the inner wall of the cabinet. The elastic member has the elastic force to drive the guide plate to rotate in the direction away from the cooling fan, and the power rod surface tends to press against the end face of the transmission rod.

[0013] By adopting the above technical solution, the elastic force of the elastic member drives the guide plate to rotate in the direction away from the cooling fan, and the power rod surface tends to press against the end face of the transmission rod, and the end face of the transmission rod away from the power rod slides in contact with the cam wheel surface, the cooling fan rotates and drives the cam to rotate. When the large end of the cam presses against the transmission rod surface, the transmission rod is driven to slide along the slide groove toward the power rod, and the end face of the transmission rod presses against the power rod surface and drives the power rod to swing away from the cooling fan, driving the guide plate to rotate toward the cooling fan; when the small end of the cam presses against the transmission rod surface, the transmission rod is driven to slide along the inner wall of the slide groove toward the direction away from the power rod, the pressure of the transmission rod on the power rod disappears, and the elastic force of the elastic member drives the guide plate to swing away from the cooling fan, driving the power rod to swing toward the direction close to the transmission rod, and the power rod surface presses against the end face of the transmission rod to form a limit, thereby realizing the automatic rotation of the guide plate, without the need for an external power device to drive the guide plate to rotate, reducing energy loss, and thus embodying the concept of energy saving.

[0014] Optionally, the heat dissipation device also includes a warning component, which includes a warning light, a contact switch and a warning float. A warning groove for the warning float to slide is provided on the inner wall of the water tank. The warning light is connected to the outer wall of the water tank. The contact switch is connected to the inner wall of the warning groove away from the warning float. The contact switch is electrically connected to the warning light. When the liquid level in the water tank drops, the warning float is driven to slide along the inner wall of the warning groove toward the contact switch. The contact switch abuts the warning float and is turned on, and the warning light is energized and illuminates.

[0015] By adopting the above technical solution, when the water tank is full of water, the warning float slides along the inner wall of the warning groove toward the direction away from the contact switch due to the buoyancy of the water in the water tank. When the water in the water tank enters the water inlet channel through the one-way valve, the liquid level in the water tank drops, and the warning float slides along the inner wall of the warning groove toward the direction close to the contact switch. The contact switch abuts the warning float and is turned on, and the warning light is energized and illuminates, thereby warning the user to fill the water tank in time. The user does not need to check the water storage condition in the water tank all the time, thereby improving the ease of use of the indoor gas insulated cabinet.

[0016] Optionally, the cabinet is connected to a gas storage assembly, which includes a gas storage tank, an air pump and a reversing valve. The gas storage tank and the air pump are connected to the outer wall of the cabinet at intervals. The gas storage tank can store insulating gas. The reversing valve has two air inlet ends and one air outlet end. One of the air inlet ends of the reversing valve is connected to the air outlet end of the gas storage tank, and the other air inlet end of the reversing valve is connected to the outside air. The air outlet end of the reversing valve is connected to the air inlet end of the air pump, and the air outlet end of the air pump is connected to the inner wall of the cabinet.

[0017] By adopting the above technical solution, when the electrical components are installed on the inner wall of the cabinet, the reversing valve connects the air outlet end of the gas tank and the air inlet end of the air pump, and the air pump drives the gas in the gas tank through the reversing valve and into the inner cavity of the cabinet, thereby realizing the inflation supply of the insulating gas in the cabinet; when the electrical components in the cabinet need to be repaired, the reversing valve connects the outside air and the air inlet end of the air pump, and the air pump drives the outside air through the reversing valve and into the inner cavity of the cabinet, thereby realizing the replacement of the insulating gas in the cabinet.

[0018] Optionally, the cabinet is connected to a collection component, which includes a one-way valve three and an air storage airbag. The cabinet has a deformation cavity for the air storage airbag to deform, and an exhaust flow channel is opened on the inner wall of the deformation cavity. The exhaust flow channel connects the inner cavity of the air storage airbag and the inner cavity of the cabinet. The one-way valve three is connected to the inner wall of the exhaust flow channel. The one-way valve three provides gas in the cabinet to enter the inner cavity of the air storage airbag through the exhaust flow channel.

[0019] By adopting the above technical solution, when the reversing valve connects the outside air and the air inlet end of the air pump, the air pump drives the outside air into the inner cavity of the cabinet through the reversing valve, the air pressure in the cabinet increases, and the gas in the cabinet passes through the one-way valve 3 and the exhaust flow channel in turn and enters the inner cavity of the gas storage bag, so that the gas storage bag collects the insulating gas, making it difficult for the insulating gas to leak out and pollute the outside air, thereby improving the environmental protection performance of indoor gas-insulated cabinets.

[0020] Optionally, the collection assembly further includes a filter box, an air intake pipe and a plurality of elastic sheets, the filter box being connected to the inner wall of the deformation chamber away from the air storage airbag, the filter box being capable of adsorbing insulating gas, the air intake pipe being connected to the surface of the filter box facing the air storage airbag, the air intake pipe being connected to the inner cavity of the filter box, the air storage airbag being provided with an air intake hole for the air intake pipe to pass through, the air intake hole being connected to the inner cavity of the air storage airbag, a plurality of the elastic sheets being connected at intervals to the inner wall of the air intake hole, and the plurality of the elastic sheets being spliced ​​at intervals to form a circular plate and close the air intake hole.

[0021] By adopting the above technical solution, the inner cavity of the air storage bag can store insulating gas, the air storage bag is pressurized and expanded and deformed in the direction close to the filter box, the elastic sheet is squeezed at the end of the air intake pipe and passes through the air intake hole to enter the inner cavity of the air storage bag, the air intake pipe connects the inner cavity of the filter box and the inner cavity of the air storage bag, the insulating gas in the air storage bag enters the inner cavity of the filter box through the air intake pipe, the filter box absorbs and collects the insulating gas, and the insulating gas is collected, so that the user is not easily harmed by the insulating gas when discharging the gas in the air storage bag, thereby further improving the safety of the user's use of indoor gas insulation cabinets.

[0022] Optionally, the collection component also includes an exhaust pipe and an exhaust impeller, the end of the cooling fan rotating shaft passes through the outer wall of the cabinet body, the exhaust impeller is coaxially connected to the cooling fan rotating shaft, one end of the exhaust pipe is connected to the outer wall of the cabinet body, the inner cavity of the exhaust pipe is connected to the inner cavity of the filter box, and the other end of the exhaust pipe faces the exhaust impeller blades.

[0023] By adopting the above technical solution, one end of the exhaust pipe is connected to the outer wall of the cabinet body, and the other end of the exhaust pipe is directed toward the exhaust impeller blades. When the air pressure in the filter box is too high, the air in the filter box is discharged through the exhaust pipe. The air impacts the exhaust impeller blades, driving the exhaust impeller to rotate around its own axis, driving the cooling fan to rotate on the inner wall of the cabinet, driving the gas flow in the cabinet, and making the electrical components in the cabinet fully contact with the gas, thereby improving the heat dissipation efficiency of the indoor gas-insulated cabinet.

[0024] Optionally, the collection component also includes a thermal expansion and contraction strip, one end of which is connected to the inner wall of the deformation cavity close to the electrical device, and the other end of which is connected to the surface of the air storage bag. The thermal expansion and contraction strip is located on the side of the air storage bag away from the filter box.

[0025] By adopting the above technical solution, the thermal expansion and contraction strip is located on the side of the air storage bag away from the filter box. When the electrical device generates heat energy during operation, the electrical device transfers the heat energy to the inner wall of the cabinet. After the inner wall of the cabinet is heated up, the heat energy is transferred to the thermal expansion and contraction strip. The thermal expansion and contraction strip heats up and expands, and the thermal expansion and contraction strip drives the air storage bag to slide toward the filter box. An air inlet hole is provided at the end of the air intake pipe and is located in the inner cavity of the air storage bag, driving the gas in the air storage bag into the inner cavity of the filter box through the air intake pipe. After the filter box adsorbs the insulating gas, the inner cavity of the filter box is pressurized, and the air in the filter box is discharged through the exhaust pipe to impact the exhaust impeller blades, driving the exhaust impeller to rotate, and driving the cooling fan to rotate on the inner wall of the cabinet, thereby realizing directional start of the cooling fan.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The installation of one-way valve 1, one-way valve 2, thermal expansion and contraction plates and circulation pipes ensures that the heat energy generated by the operation of electrical components can be stably transferred to the inner wall of the cabinet, thereby achieving cooling of the electrical components and preventing them from being damaged by operating at high temperatures for a long time, thereby extending the service life of indoor gas-insulated cabinets;

[0028] 2. The cooling fan and power impeller drive the gas in the cabinet to impact the electrical components. The gas and the electrical components exchange heat to cool the electrical components and further improve the heat dissipation efficiency of the indoor gas-insulated cabinet.

[0029] 3. The setting of the guide plate ensures that the electrical components in the cabinet are in full contact with the gas, so that the electrical components in the cabinet are not easily heated during operation, thereby ensuring the stability of the operation of the indoor gas-insulated cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0031] Figure 2 It is a cross-sectional view in an embodiment of the present application, mainly showing elastic member 1.

[0032] Figure 3 It is a cross-sectional view in an embodiment of the present application, mainly showing the collection component.

[0033] Explanation of reference numerals: 1. cabinet; 11. installation cavity; 12. power cavity; 13. water inlet channel; 14. cooling channel; 15. rotation cavity; 16. chute; 17. deformation cavity; 18. exhaust channel; 2. heat dissipation device; 21. water storage tank; 211. warning slot; 22. power assembly; 221. one-way valve 1; 222. one-way valve 2; 223. thermal expansion and contraction plate; 224. circulation pipe; 23. cooling fan; 24. power impeller; 25. guide plate; 26. warning assembly; 261. warning light; 262. touch Point switch; 263, warning float; 27, transmission assembly; 271, cam; 272, transmission rod; 273, power rod; 274, elastic part one; 3, cabinet door; 4, handle; 5, gas storage assembly; 51, gas tank; 52, air pump; 53, reversing valve; 6, collecting assembly; 61, one-way valve three; 62, gas storage airbag; 621, air inlet; 63, filter box; 631, box body; 632, adsorption strip; 64, air inlet pipe; 65, exhaust impeller; 66, exhaust pipe; 67, thermal expansion and contraction strip; 68, elastic sheet. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-3 This application is described in further detail.

[0035] The embodiment of the present application discloses an indoor gas-insulated cabinet. Figure 1 The indoor gas-insulated cabinet includes a cabinet body 1 and a heat dissipation device 2. The bottom of the cabinet body 1 is against the ground to form a support. The cabinet body 1 has an installation cavity 11 for installing electrical components. The installation cavity 11 can be filled with insulating gas. The insulating gas can be sulfur hexafluoride or nitrogen. In the embodiment of the present application, the insulating gas is sulfur hexafluoride. The cabinet body 1 is rotatably connected to a cabinet door 3 covering the installation cavity 11. The rotation axis of the cabinet door 3 and the height direction of the cabinet body 1 are parallel to each other. A handle 4 is fixed to the surface of the cabinet body 1 by bolts. The heat dissipation device 2 is installed on the cabinet body 1. The heat dissipation device 2 can dissipate heat for the electrical components in the installation cavity 11, so that the electrical components in the installation cavity 11 are not easily damaged by operating in a high-temperature state for a long time, thereby extending the service life of the indoor gas-insulated cabinet.

[0036] Reference Figure 2 and Figure 3The heat dissipation device 2 includes a water tank 21, a power component 22, a cooling fan 23, a power impeller 24, a guide plate 25, a warning component 26 and a transmission component 27. The water tank 21 is welded and fixed to the side wall of the cabinet 1 away from the cabinet door 3. The inner cavity of the water tank 21 can store water. The power component 22 is connected to the cabinet 1. The power component 22 can drive the water in the water tank 21 to flow. The power component 22 includes a one-way valve 1 221, a one-way valve 222, a thermal expansion and contraction plate 223 and a circulation pipe 224. A power chamber 12 capable of storing water is opened in the cabinet 1. The power chamber 1 2 is located between the water storage tank 21 and the installation cavity 11. The material of the thermal expansion and contraction plate 223 can be nylon or rubber. In the embodiment of the present application, the material of the thermal expansion and contraction plate 223 is nylon, which has a certain deformation ability. The thermal expansion and contraction plate 223 is fixed to the inner wall of the power cavity 12 near the installation cavity 11. The inner wall of the power cavity 12 is provided with a water inlet channel 13, which connects the inner cavity of the water storage tank 21 and the power cavity 12. The one-way valve 221 is installed on the inner wall of the water inlet channel 13. The one-way valve 221 allows water in the water storage tank 21 to enter the power cavity 12 through the water inlet channel 13.

[0037] Reference Figure 3 A cooling channel 14 is provided on the inner wall of the power cavity 12, and the end of the cooling channel 14 passes through the outer wall of the cabinet 1. A second one-way valve 222 is installed on the inner wall of the cooling channel 14. The second one-way valve 222 allows water in the power cavity 12 to enter the cooling channel 14. One end of the circulation pipe 224 is welded and fixed to the top wall of the cabinet 1, and the other end of the circulation pipe 224 faces the opening of the water tank 21. The inner cavity of the circulation pipe 224 is connected to the inner cavity of the cooling channel 14.

[0038] Reference Figure 3 When the electrical components in the installation cavity 11 generate heat energy during operation, the electrical components transfer the heat energy to the inner wall of the installation cavity 11. After the inner wall of the installation cavity 11 is heated up, the heat energy is transferred to the thermal expansion and contraction plate 223. The thermal expansion and contraction plate 223 is heated up and expanded, driving the water in the power cavity 12 into the cooling channel 14 through the one-way valve 222. The water exchanges heat with the inner wall of the cooling channel 14 to cool the cabinet 1, so that the electrical components can stably transfer the heat energy to the inner wall of the installation cavity 11, thereby cooling the electrical components and making it less likely for the electrical components to be damaged by operating at high temperature for a long time, thereby extending the service life of the indoor gas insulated cabinet; at the same time, the water in the cooling channel 14 flows back to the inner cavity of the water storage tank 21 through the circulation pipe 224, thereby realizing the recycling of water resources, reducing the waste of water resources, and embodying the concept of energy saving.

[0039] Reference Figure 3 At the same time, when the thermal expansion and contraction plate 223 cools down and contracts, a negative pressure is formed in the inner cavity of the power chamber 12, and the water in the water tank 21 passes through the one-way valve 221 and the water inlet channel 13 in turn and enters the power chamber 12, realizing the directional replenishment of the water in the power chamber 12.

[0040] Reference Figure 2 and Figure 3 The cooling fan 23 is rotatably connected to the inner wall of the mounting cavity 11. The rotation axis of the cooling fan 23 is parallel to the height direction of the cabinet 1. The end of the rotation axis of the cooling fan 23 passes through the cooling channel 14 and the outer wall of the cabinet 1 in sequence and protrudes from the top wall of the cabinet 1. The power impeller 24 is coaxially fixed on the rotation axis of the cooling fan 23. The inner wall of the cooling channel 14 is provided with a rotating cavity 15 for the rotation of the power impeller 24. When the water in the power cavity 12 enters the cooling channel 14 through the one-way valve 222, the water flowing in the cooling channel 14 passes through the rotating cavity 15. The dynamic cavity 15 impacts the blades of the power impeller 24, driving the power impeller 24 to rotate around its own axis, driving the cooling fan 23 to rotate on the inner wall of the installation cavity 11. No external power device is required to drive the cooling fan 23 to rotate, reducing energy loss, thereby embodying the concept of energy saving. At the same time, the cooling fan 23 drives the gas in the installation cavity 11 to flow, so that the gas is in full contact with the electrical components in the installation cavity 11. The electrical components transfer heat energy to the gas, thereby cooling the electrical components and improving the cooling efficiency of the indoor gas-insulated cabinet.

[0041] Reference Figure 2 and Figure 3 The end of the guide plate 25 is rotatably connected to the inner wall of the installation cavity 11, and the rotation axis of the guide plate 25 is parallel to the width direction of the cabinet body 1. The guide plate 25 is located between the cabinet door 3 and the cooling fan 23. The guide plate 25 can drive the air flow in the installation cavity 11, so that the air in the installation cavity 11 is in full contact with the electrical components. At the same time, the plate surface of the guide plate 25 facing the air outlet end of the cooling fan 23 can guide the airflow to impact the electrical components, further improving the heat dissipation efficiency of the indoor gas-insulated cabinet; the transmission assembly 27 is connected between the cooling fan 23 and the guide plate 25. The transmission assembly 27 can receive the power of the cooling fan 23 and drive the guide plate 25 to rotate.

[0042] Reference Figure 2 and Figure 3The transmission assembly 27 includes a cam 271, a transmission rod 272, a power rod 273 and an elastic member 274. The cam 271 is fixed to the rotating shaft of the cooling fan 23. The inner wall of the installation cavity 11 is provided with a slide groove 16 for the sliding of the transmission rod 272. The sliding direction of the transmission rod 272 is parallel to the length direction of the cabinet 1. One end of the transmission rod 272 is in sliding contact with the wheel surface of the cam 271. The other end of the transmission rod 272 is facing the rotating shaft of the guide plate 25. The end of the power rod 273 is welded and fixed to the rotating shaft of the guide plate 25. The power rod 2 The axis 73 and the rotation axis of the cooling fan 23 are parallel to each other. The elastic member 274 can be a tension spring or a torsion spring. In the embodiment of the present application, the elastic member 274 is a torsion spring with a certain deformation ability. One end of the elastic member 274 in the elastic direction is fixed to the plate surface of the guide plate 25, and the other end of the elastic member 274 in the elastic direction is fixed to the inner wall of the installation cavity 11. The elastic member 274 has the elastic force to drive the guide plate 25 to rotate in the direction away from the cooling fan 23, and the surface of the power rod 273 tends to press against the end face of the transmission rod 272.

[0043] Reference Figure 2 and Figure 3 The cam 271 wheel surface and the power rod 273 rod surface clamp the two ends of the transmission rod 272 to form a limit. The cam 271 has a large end and a small end. When the large end of the cam 271 abuts the rod surface of the transmission rod 272, the transmission rod 272 is driven to slide along the inner wall of the slide groove 16 toward the direction close to the power rod 273. The transmission rod 272 squeezes the power rod 273 to swing in the direction away from the cooling fan 23, driving the guide plate 25 to swing toward the direction close to the cooling fan 23. The surface of the guide plate 25 is close to the air outlet end of the cooling fan 23. The cooling fan 23 drives the airflow to impact the surface of the guide plate 25. The surface of the guide plate 25 guides the airflow to impact the electrical device. The electrical components and the gas fully exchange heat, further improving the heat dissipation efficiency of the electrical components; when the small end of the cam 271 abuts against the rod surface of the transmission rod 272, the elastic force of the elastic member 274 drives the guide plate 25 to swing in the direction away from the cooling fan 23, and at the same time, the power rod 273 swings in the direction close to the cooling fan 23, and the power rod 273 abuts against the transmission rod 272 and drives the transmission rod 272 to slide along the inner wall of the slide groove 16 toward the cooling fan 23, thereby realizing the directional swing of the guide plate 25. There is no need for an external power device to drive the guide plate 25 to swing, thereby reducing energy loss and reflecting the concept of energy saving.

[0044] Reference Figure 3The warning assembly 26 is connected to the water storage tank 21, and the warning assembly 26 can warn the water content in the water storage tank 21. The warning assembly 26 comprises a warning lamp 261, a contact switch 262 and a warning float 263. The material of the warning float 263 can be foam or wood block. In the embodiment of the application, the material of the warning float 263 is wood block. The inner wall of the water storage tank 21 is provided with a warning groove 211 for the sliding of the warning float 263. The sliding direction of the warning float 263 is parallel to the height direction of the cabinet 1. The warning lamp 261 is installed on the outer wall of the water storage tank 21. The contact switch 262 is installed on the inner wall of the warning groove 211 close to the one-way valve 221. The contact switch 262 is electrically connected with the warning lamp 261. When the liquid level in the water storage tank 21 is lowered, the warning float 263 slides along the inner wall of the warning groove 211 towards the contact switch 262. The contact switch 262 abuts against the warning float 263 and is turned on. The warning lamp 261 is powered and emits light, thereby warning the user to timely supplement water in the inner cavity of the water storage tank 21.

[0045] With reference to Figure 1 The cabinet 1 is provided with a gas storage assembly 5. The gas storage assembly 5 can supply insulation gas or air to the installation cavity 11. The gas storage assembly 5 comprises a gas storage tank 51, a gas pump 52 and a reversing valve 53. The inner cavity of the gas storage tank 51 stores sulfur hexafluoride. The gas storage tank 51 is fixed on the outer wall of the cabinet 1 by bolts. The gas pump 52 is fixed on the outer wall of the cabinet 1 by bolts. The reversing valve 53 has one gas outlet end and two gas inlet ends. One of the gas inlet ends of the reversing valve 53 is connected to the gas outlet end of the gas storage tank 51 through a pipeline. The other gas inlet end of the reversing valve 53 is connected to the outside air. The gas outlet end of the reversing valve 53 is connected to the gas inlet end of the gas pump 52 through a pipeline. The gas outlet end of the gas pump 52 is connected to the installation cavity 11 through a pipeline.

[0046] With reference to Figure 1 When the reversing valve 53 drives the gas outlet end of the gas storage tank 51 to be connected to the gas inlet end of the gas pump 52, the gas pump 52 drives the gas in the gas storage tank 51 to enter the installation cavity 11 through the pipeline, thereby achieving the supplement of insulation gas in the installation cavity 11. When the reversing valve 53 drives the outside air to be connected to the gas inlet end of the gas pump 52, the gas pump 52 drives the outside air to enter the installation cavity 11 through the pipeline, thereby achieving the supplement of air in the installation cavity 11.

[0047] With reference to Figure 3The cabinet 1 is equipped with a collecting component 6, which can collect the insulating gas in the installation cavity 11; the collecting component 6 includes a one-way valve three 61, an air storage bag 62, a filter box 63, an air inlet pipe 64, an exhaust pipe 66, an exhaust impeller 65, a thermal expansion and contraction strip 67 and a plurality of elastic sheets 68. The material of the air storage bag 62 can be rubber or silicone. In the embodiment of the present application, the material of the air storage bag 62 is rubber and has a certain deformation ability. The cabinet 1 has a deformation cavity 17 for the air storage bag 62 to deform. The deformation cavity 17 is located on the side of the installation cavity 11 close to the ground. The deformation cavity 17 is provided with an exhaust flow channel 18 near the inner wall of the installation cavity 11. The exhaust flow channel 18 connects the inner cavity of the air storage bag 62 and the installation cavity 11. The one-way valve three 61 is installed on the inner wall of the exhaust flow channel 18. The one-way valve three 61 allows the gas in the installation cavity 11 to enter the inner cavity of the air storage bag 62 through the exhaust flow channel 18, thereby realizing the collection of the insulating gas in the installation cavity 11.

[0048] Reference Figure 3 The material of the thermal expansion and contraction strip 67 can be nylon or rubber. In the embodiment of the present application, the material of the thermal expansion and contraction strip 67 is nylon, which has a certain thermal expansion coefficient. One end of the thermal expansion and contraction strip 67 is fixed on the inner wall of the deformation cavity 17 close to the installation cavity 11, and the other end of the thermal expansion and contraction strip 67 is fixed on the surface of the air storage airbag 62. The filter box 63 is installed on the inner wall of the deformation cavity 17 away from the thermal expansion and contraction strip 67. The filter box 63 includes a box body 631 and an adsorption strip 632. The box body 631 is welded and fixed on the inner wall of the deformation cavity 17. The material of the adsorption strip 632 can be activated carbon or molecular sieve. In the embodiment of the present application, the material of the adsorption strip 632 is activated carbon. The attachment strip 632 is fixed on the inner wall of the box body 631. The adsorption strip 632 can adsorb sulfur hexafluoride. The air intake pipe 64 is welded and fixed on the surface of the box body 631 facing the air storage airbag 62. The inner cavity of the air intake pipe 64 is connected to the inner cavity of the box body 631. The surface of the air storage airbag 62 is provided with an air intake hole 621 for the end of the air intake pipe 64 to pass through. The air intake hole 621 is connected to the inner cavity of the air storage airbag 62. The material of the elastic sheet 68 can be rubber or silicone. In the embodiment of the present application, the material of the elastic sheet 68 is rubber, which has a certain deformation ability. Multiple elastic sheets 68 are fixed at intervals on the inner wall of the air intake hole 621. Multiple elastic sheets 68 are spliced ​​to form a circular plate and close the air intake hole 621.

[0049] Reference Figure 3 The exhaust impeller 65 is coaxially welded and fixed on the rotating shaft of the cooling fan 23 protruding from the top wall of the cabinet 1. One end of the exhaust pipe 66 is welded and fixed to the outer wall of the cabinet 1, and the other end of the exhaust pipe 66 faces the blades of the exhaust impeller 65, and the inner cavity of the exhaust pipe 66 is connected to the inner cavity of the box 631.

[0050] Reference Figure 1 and Figure 3When the reversing valve 53 drives the outlet end of the gas storage tank 51 to connect with the inlet end of the air pump 52, the air pump 52 drives the gas in the gas storage tank 51 into the installation cavity 11 through the pipeline. At the same time, the air pressure in the installation cavity 11 increases, and the air in the installation cavity 11 enters the inner cavity of the air storage airbag 62 through the one-way valve three 61, thereby realizing the stable filling of the insulating gas in the installation cavity 11; when it is necessary to repair the electrical components in the installation cavity 11, the reversing valve 53 drives the outside air to connect with the inlet end of the air pump 52, and the air pump 52 drives the outside air into the installation cavity 11 through the pipeline. The air pressure in the installation cavity 11 increases, driving the insulating gas to pass through the one-way valve three 61 and the exhaust flow channel 18 into the air storage airbag in turn. 62 cavity, the air storage bag 62 is pressurized and deformed toward the direction close to the box body 631, the end of the air inlet pipe 64 squeezes the elastic sheet 68 and deforms to penetrate the air inlet hole 621 and is located in the air storage bag 62 cavity, the gas in the air storage bag 62 enters the inner cavity of the box body 631 through the air inlet pipe 64, the adsorption strip 632 adsorbs the insulating gas to realize the collection of the insulating gas, and at the same time, when the air pressure in the box body 631 increases, the air in the box body 631 is discharged through the exhaust pipe 66 and impacts the blades of the exhaust impeller 65, driving the exhaust impeller 65 to rotate, driving the cooling fan 23 to rotate on the inner wall of the installation cavity 11, so that the electrical components are in full contact with the gas, thereby improving the cooling efficiency of the indoor gas insulated cabinet.

[0051] Reference Figure 3 When the electrical device is running and transfers heat energy to the inner wall of the installation cavity 11, the inner wall of the installation cavity 11 heats up and transfers the heat energy to the thermal expansion and contraction strip 67. The thermal expansion and contraction strip 67 heats up and expands and drives the air storage bag 62 to slide in the deformation cavity 17 toward the box body 631. The end of the air inlet pipe 64 squeezes the elastic sheet 68 to deform and penetrates the air inlet hole 621 to enter the inner cavity of the air storage bag 62, driving the gas in the air storage bag 62 into the inner cavity of the box body 631 through the air inlet pipe 64. The gas passes through the adsorption strip 632 to absorb the insulating gas and is discharged from the exhaust pipe 66. The air discharged from the exhaust pipe 66 hits the blades of the exhaust impeller 65, driving the cooling fan 23 to rotate on the inner wall of the installation cavity 11, thereby realizing directional heat dissipation of the electrical device.

[0052] The implementation principle of an indoor gas-insulated cabinet in an embodiment of the present application is as follows: when the electrical devices in the installation cavity 11 generate heat energy during operation, the electrical devices transfer the heat energy to the inner wall of the installation cavity 11. After the inner wall of the installation cavity 11 is heated up, the heat energy is transferred to the thermal expansion and contraction plate 223. The thermal expansion and contraction plate 223 heats up and expands, driving the water in the power cavity 12 into the cooling channel 14 through the one-way valve 222. The water exchanges heat with the inner wall of the cooling channel 14 to achieve cooling of the cabinet body 1, so that the electrical devices can stably transfer the heat energy to the inner wall of the installation cavity 11, thereby achieving cooling of the electrical devices and preventing the electrical devices from being damaged by operating in a high-temperature state for a long time, thereby extending the service life of the indoor gas-insulated cabinet; at the same time, the water in the cooling channel 14 flows back to the inner cavity of the water storage tank 21 through the circulation pipe 224, thereby achieving the recycling of water resources, reducing the waste of water resources, and embodying the concept of energy saving.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. Indoor gas-insulated cabinet, characterized by: The invention comprises a cabinet (1) and a heat dissipation device (2), wherein the heat dissipation device (2) comprises a water storage tank (21) and a power assembly (22), wherein the water storage tank (21) is connected to the outer wall of the cabinet (1), and the power assembly (22) comprises a one-way valve (221), a one-way valve (222), a thermal expansion and contraction plate (223), and a circulation pipe (224). A power chamber (12) for water storage is provided in the cabinet (1), wherein the thermal expansion and contraction plate (223) is connected to the inner wall of the power chamber (12), wherein the thermal expansion and contraction plate (223) is close to the electrical components in the cabinet (1), and wherein a water inlet channel (13) is provided on the inner wall of the power chamber (12). The water inlet channel (13) is connected to the inner cavity of the water storage tank (21) and the power chamber (12); the one-way valve (221) is connected to the inner wall of the water inlet channel (13); the one-way valve (221) allows water in the water storage tank (21) to enter the power chamber (12) through the water inlet channel (13); a cooling channel (14) is provided on the inner wall of the power chamber (12); the one-way valve (222) is connected to the inner wall of the cooling channel (14); the one-way valve (222) allows water in the power chamber (12) to enter the cooling channel (14); the circulation pipe (224) is connected to the outer wall of the cabinet (1); one end of the circulation pipe (224) is connected to the outer wall of the cabinet (1); The cooling channel (14) is connected to the cooling channel (14), and the other end of the circulation pipe (224) faces the opening of the water storage tank (21); the heat dissipation device (2) also includes a cooling fan (23) and a power impeller (24); the cooling fan (23) is rotatably connected to the inner wall of the cabinet (1); the end of the rotating shaft of the cooling fan (23) passes through the inner wall of the cabinet (1) and is located in the cooling channel (14); the power impeller (24) is coaxially connected to the rotating shaft of the cooling fan (23); the inner wall of the cooling channel (14) is provided with a rotating cavity (15) for rotating the power impeller (24); water in the cooling channel (14) can impact the power impeller (24) The cabinet (1) is connected to a collecting assembly (6), the collecting assembly (6) includes a one-way valve (3) (61) and an air storage bag (62), the cabinet (1) has a deformation chamber (17) for the air storage bag (62) to deform, the inner wall of the deformation chamber (17) is provided with an exhaust flow channel (18), the exhaust flow channel (18) connects the inner cavity of the air storage bag (62) and the inner cavity of the cabinet (1), the one-way valve (3) (61) is connected to the inner wall of the exhaust flow channel (18), and the one-way valve (3) (61) allows the gas in the cabinet (1) to enter the inner cavity of the air storage bag (62) through the exhaust flow channel (18);The collecting assembly (6) further comprises a filter box (63), an air intake pipe (64) and a plurality of elastic sheets (68), wherein the filter box (63) is connected to the inner wall of the deformation chamber (17) away from the air storage bag (62), and the filter box (63) is capable of absorbing insulating gas, and the air intake pipe (64) is connected to the surface of the filter box (63) facing the air storage bag (62), and the air intake pipe (64) is connected to the inner cavity of the filter box (63), and the air storage bag (62) is provided with an air intake hole (621) for the air intake pipe (64) to pass through, and the air intake hole (621) is connected to the inner cavity of the air storage bag (62), and the plurality of elastic sheets (68) are connected to the inner cavity of the air storage bag (62). The elastic sheet (68) is connected to the inner wall of the air inlet (621) at intervals, and a plurality of the elastic sheets (68) are spliced ​​at intervals to form a circular plate and seal the air inlet (621); the collecting assembly (6) further comprises an exhaust pipe (66) and an exhaust impeller (65); the end of the rotating shaft of the cooling fan (23) passes through the outer wall of the cabinet (1); the exhaust impeller (65) is coaxially connected to the rotating shaft of the cooling fan (23); one end of the exhaust pipe (66) is connected to the outer wall of the cabinet (1); the inner cavity of the exhaust pipe (66) is connected to the inner cavity of the filter box (63); and the other end of the exhaust pipe (66) faces the blades of the exhaust impeller (65).

2. The indoor gas-insulated cabinet according to claim 1, characterized in that: The heat dissipation device (2) further comprises a guide plate (25), the guide plate (25) being rotatably connected to the inner wall of the cabinet (1), the rotation axis of the guide plate (25) and the rotation axis of the heat dissipation fan (23) being perpendicular to each other, the surface of the guide plate (25) facing the air outlet of the heat dissipation fan (23), and the surface of the guide plate (25) being capable of guiding gas to impact the electrical components in the cabinet (1).

3. The indoor gas-insulated cabinet according to claim 2, characterized in that: The heat dissipation device (2) further comprises a transmission assembly (27), the transmission assembly (27) comprising a cam (271), a transmission rod (272), a power rod (273) and an elastic member (274), the cam (271) being connected to the rotating shaft of the heat dissipation fan (23), the inner wall of the cabinet (1) being provided with a sliding groove (16) for the transmission rod (272) to slide, one end of the transmission rod (272) being in sliding contact with the wheel surface of the cam (271), and the other end of the transmission rod (272) being in sliding contact with the guide wheel. The guide plate (25) is rotated along a rotation axis, the end of the power rod (273) is connected to the rotation axis of the guide plate (25), one end of the elastic member (274) in the elastic direction is connected to the plate surface of the guide plate (25), and the other end of the elastic member (274) in the elastic direction is connected to the inner wall of the cabinet (1), the elastic member (274) has an elastic force to drive the guide plate (25) to rotate in a direction away from the cooling fan (23), and the rod surface of the power rod (273) tends to press against the end surface of the transmission rod (272).

4. The indoor gas-insulated cabinet according to claim 1, characterized in that: The heat dissipation device (2) further comprises a warning assembly (26), the warning assembly (26) comprising a warning light (261), a contact switch (262) and a warning float (263); the inner wall of the water storage tank (21) is provided with a warning groove (211) for the warning float (263) to slide; the warning light (261) is connected to the outer wall of the water storage tank (21); the contact switch (262) is connected to the inner wall of the warning groove (211) away from the warning float (263); the contact switch (262) is electrically connected to the warning light (261); when the liquid level in the water storage tank (21) drops, the warning float (263) is driven to slide along the inner wall of the warning groove (211) toward the contact switch (262); the contact switch (262) abuts against the warning float (263) and is turned on, and the warning light (261) is energized and emits light.

5. The indoor gas-insulated cabinet according to claim 1, characterized in that: The cabinet (1) is connected to a gas storage assembly (5), the gas storage assembly (5) comprising a gas storage tank (51), an air pump (52) and a reversing valve (53), the gas storage tank (51) and the air pump (52) being connected to the outer wall of the cabinet (1) at intervals, the gas storage tank (51) being capable of storing insulating gas, the reversing valve (53) having two inlet ends and one outlet end, one inlet end of the reversing valve (53) being connected to the outlet end of the gas storage tank (51), the other inlet end of the reversing valve (53) being connected to external air, the outlet end of the reversing valve (53) being connected to the inlet end of the air pump (52), and the outlet end of the air pump (52) being connected to the inner wall of the cabinet (1).

6. The indoor gas-insulated cabinet according to claim 1, characterized in that: The collecting assembly (6) further comprises a thermal expansion and contraction strip (67), one end of which is connected to the inner wall of the deformation cavity (17) close to the electrical device, and the other end of which is connected to the surface of the air storage bag (62). The thermal expansion and contraction strip (67) is located on a side of the air storage bag (62) away from the filter box (63).

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